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The Critical Roles of Calcium and Vitamin D
Correct Dog Nutrition RulesHaving a dog for a pet can be fun, but you must know every single thing about taking care of the dog before you get one. One of the most important subjects is dog nutrition. You can' t deny that dogs ... Calcium and vitamin D both play critical roles in the human body. Calcium is the most 'plentiful mineral found in the human body, accounting for 1.5% to 2% of an adult's total body weight.' Approximately 99% of the calcium in the body is to be found in the bones and teeth. Calcium in these areas is to be found as phosphate salts, which are in a concentrated form. The remainder of the one percent of calcium in the body can be found in the blood, body tissues, nerve cells as well as the fluids that surround the cells. Calcium is essential for the proper growth and maintenance of the body's reproductive system. Calcium is a mineral that is vital for the development and maintenance of healthy bones as well as strong, healthy teeth and gums. Calcium is also a necessity for a regular heartbeat, blood coagulation, muscle contractions as well as the relaxation of muscles, nerve impulse transmission, hormone secretion stimulation, and the activation of proper enzyme reactions in the body.
Vitamin D is a fat soluble vitamin (or is sometimes referred to as an oil soluble vitamin) that is manufactured by the body as a result of exposure to sunlight. As well vitamin D also comes from dietary sources such as fish, fortified foods (and fortified milk) and cod liver oil. Vitamin D works with calcium to keep an adequate supply of this essential mineral in the teeth and bones at all times. Research into vitamin D has shown that it also helps in other areas of the body such as the skin, muscles, cells that deal with immunity and the pancreas. The 'Recommended Daily Allowance' for most adults is 200 IUs. A deficiency of vitamin D in the body can cause calcium to be lost from the bones which can then cause the bones to become soft and thereby more prone to infection or infection and it can also bring on the disease Rickets. Vitamin D also sometimes is referred to as Cholecalciferol.
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The bones of the body are active tissues and on a regular basis they both use up and release the mineral calcium in order to maintain both the strength of the human skeleton as well as its density. For this reason, all people need to take in enough calcium on a consistent basis. According to health experts, the bones of an adult require two thirds of the calcium that was consumed when a person was a youngster still growing.
A deficiency of calcium over time can lead to the development of a condition that causes thinness and fragility of the bones known as osteoporosis. This condition most often afflicts postmenopausal females. Women are particularly vulnerable to a calcium deficiency because during pregnancy the fetus demands a tremendous amount of calcium and this high demand affects a woman's body. It continues beyond pregnancy into the period of lactation. Later on in life when a woman is either going through menopause or has gone through it already, the lesser amounts of estrogen affect the ability of the bones to hold onto the necessary supply of calcium or it may actually contribute to a greater loss of calcium.
Calcium is the number one factor in the building of healthy bones and teeth. Calcium helps to keep blood pressure at a normal healthy level and it may help to prevent hypertension. Research is ongoing as to all the many benefits that calcium has for the human body. The bones act as a bank of sorts for calcium. They store the mineral and have it at the ready when the cells require it. When the body is not taking in enough calcium on a regular basis and it is not being replenished often enough, the bones will take from themselves what they need.
Vitamin D has as its function the proper absorption of calcium. Research into vitamin deficiency has shown that it is very common in seniors and the most elderly of the population. One of the best sources of calcium is milk and milk is often fortified with vitamin D. With the exception of children, pregnant women and those suffering from osteoporosis, most individuals should be drinking low fat (or one percent) or skim milk because they do not need the extra fat of other kinds of milk.
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